42539194245 has 16 divisors (see below), whose sum is σ = 68086177920. Its totient is φ = 22679747904.

The previous prime is 42539194223. The next prime is 42539194267. The reversal of 42539194245 is 54249193524.

42539194245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42539194223) and next prime (42539194267).

It is not a de Polignac number, because 42539194245 - 2⁵ = 42539194213 is a prime.

It is a super-2 number, since 2×42539194245² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 42539194194 and 42539194203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 443809 + ... + 531078.

It is an arithmetic number, because the mean of its divisors is an integer number (4255386120).

Almost surely, 2^42539194245 is an apocalyptic number.

It is an amenable number.

42539194245 is a deficient number, since it is larger than the sum of its proper divisors (25546983675).

42539194245 is a wasteful number, since it uses less digits than its factorization.

42539194245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977804.

The product of its digits is 1555200, while the sum is 48.

The spelling of 42539194245 in words is "forty-two billion, five hundred thirty-nine million, one hundred ninety-four thousand, two hundred forty-five".